Linear programming variables.¶
Linear programing (LP) variables are the variables whose values the optimizer will solve for in each time step.
Set of LpVariables:¶
| LPvariable | Definition | Unit | Type |
|---|---|---|---|
| \(Q_{\ bat, k}\) | Battery charge. | kWh | Continuous |
| \(P_{k}\) | Power generated by the genset. | kW | Continuous |
| \(P_{\mathrm{load}, k}\) | Power from genset to the load. | kW | Continuous |
| \(P_{\mathrm{to\_bat}, k}\) | Power from genset to the battery. | kW | Continuous |
| \(P_{\mathrm{from\_bat}, k}\) | Power from the battery to the load. | kW | Continuous |
| \(Y_k\) | Logical variable indicating the state of genset. | - | Binary |
| \(Y_{\mathrm{to\_bat}, k}\) | Logical charging variable for the battery. | - | Binary |
| \(Y_{\mathrm{from\_bat}, k}\) | Logical discarging variable for the battery. | - | Binary |
| \(Z\) | Aditional cost fuel oil consumption when starting Genset. | - | Binary |
| \(FOC\) | Genset fuel oil consumption. | g | Continuous |
The index \(k\) is in all cases used to the denote a particular time step.